Junghans J880.3 User manual
JUNGHANS – D I E DEUTSCHE UHR
Automatikwerk
Self-winding movement
J880.3
J880.4
1918
JU NG HA NS – T HE GE RM AN WATCH
Many congratu ations on your purchase of a timepiece from
Junghans.
What began in 1861 with the founding of the firm in Schramberg
quick y deve oped into one of the most fascinating success stories
of the German watchmaking industry. Whi e since that time the
demands made of watches may have changed, the Junghans
phi osophy has a ways remained the same. Innovative f air and the
constant pursuit of precision right down to the sma est detai
define how the company works and thinks. You can see and sense
this in every watch that carries the Junghans name. For as diverse
as the Junghans range may be, it pursues one sing e goa : to
combine traditiona craftsmanship with cutting-edge watch
techno ogy and exciting design. That makes every watch with the
Junghans star unique.
We hope you wi enjoy this very specia time-keeping instrument.
Yours,
Uhrenfabrik Junghans GmbH & Co. KG
EN GL ISH
2120
Contents Page
Operating instructions ca ibre J880.4 22
Operating instructions ca ibre J880.3 24
Technica information 28
2322
Winding up the watch
With the winder in position A, you can wind up the automatic move-
ment manua y. At east 2 to 3 rotations of the winder are needed to
start the movement. It is better to wind it up comp ete y. It is fu y
wound up after c. 30 rotations of the winder, as then the maximum
accuracy and its power reserve (even after the watch is put down) wi
ast for the maximum period. After you have set your watch, you shou d
wear it, so that the automatic winding system (via rotor movement)
keeps it constant y operationa .
Features and functions
Calibre J880.4
1
6
5
7
AB
8
4
2
3
1 Hour hand
2 Minute counter
3 Stop second counter
4 Minute hand
5 Start-stop pusher
6 Crown
7 Reset pusher
8 Second hand
Setting the time
Pu the crown to position B. This stops the watch movement. To set the
watch accurate to the second it is advisab e to stop the second hand
above the 60. You can now position the minute hand exact y on the
minute ine and set the required time. To start the movement press the
crown back to position A.
Chronoscope functions
Initiating time measurement
Begin the chronoscope function by pressing the start-stop pusher (5).
Stopping time measurement:
Stop the chronoscope function by pressing the start-stop pusher (5)
again.
Resetting:
Press the reset pusher (7). This resets both stopwatch hands to their
zero position.
Addition time measurement:
Press the start-stop pusher (5) again after the respective measurement
to add the stop times. The chronoscope hands wi then recommence
from the stopped position.
27
49
6
38
10
AB
15
24 25
Winding up the watch
With the winder in position A, you can wind up the automatic move-
ment manua y. At east 2 to 3 rotations of the winder are needed to
start the movement. It is better to wind it up comp ete y. It is fu y
wound up after c. 60 rotations of the winder, as then the maximum
accuracy and its power reserve (even after the watch is put down) wi
ast for the maximum period. After you have set your watch, you shou d
wear it, so that the automatic winding system (via rotor movement)
keeps it constant y operationa .
Features and functions
Calibre J880.3
Setting the time
Pu the crown to position B. This stops the watch movement. To set the
watch accurate to the second it is advisab e to stop the second hand
above the 60. You can now position the minute hand exact y on the
minute ine and set the required time. To start the movement press the
crown back to position A.
Chronoscope functions
Initiating time measurement
Begin the chronoscope function by pressing the start-stop pusher (7).
Stopping time measurement:
Stop the chronoscope function by pressing the start-stop pusher (7)
again.
Resetting:
Press the reset pusher (9). This resets both stopwatch hands to their
zero position.
Addition time measurement:
Press the start-stop pusher (7) again after the respective measurement
to add the stop times. The chronoscope hands wi then recommence
from the stopped position.
1 Te emeter sca e
2 Hour hand
3 Minute counter
4 Stop second counter
5 Tachymeter sca e
6 Minute hand
7 Start-stop pusher
8 Crown
9 Reset pusher
10 Second hand
2726
Tachymeter scale
The tachymeter sca e indicates the average speed trave ed over a
defined distance. The sca e is based on a distance of one ki ometre.
At the beginning of the distance start the timing procedure by pressing
the start-stop pusher (7). After one ki ometre stop the timing procedure
by pressing the start-stop pusher again (7). The second hand disp ays
the average speed trave ed on the sca e.
For examp e: You are trave ing as a PASSENGER in a car on the motor-
way. The ref ector posts are at interva s of 50 m. You start the timing
procedure at the first ref ector post and end the procedure at the 21st.
You have therefore covered a distance of one ki ometre. The second
hand now shows you the average speed.
If you require 30 seconds for one ki ometre, your average speed is
120 km/h.
Telemeter scale
The te emeter sca e is used to estimate the distance in ki ometres
between a visib e ight, e.g. a f ash of ightning, and hearing the accom-
panying noise.
Begin the timing procedure by operating the start-stop pusher (7) on
seeing the ight, such as a f ash of ightning. As soon as the sound of
thunder is audib e, press the start-stop pusher again (7). You can now
read the distance of the storm in km on the te emeter sca e.
An examp e: If the stop second hand on the te emeter sca e stops at
the "2", then the storm is 2 km away. (2000 m: 334m/s = 5.99 seconds =
te emeter sca e "2").
As ight trave s at the speed of ight,
the time that the f ash of ightning
requires to reach your ocation is ne -
g igib e.
This is not the case with thunder, how-
ever, as this trave s at the speed of
sound, i.e. at approximate y 334 m/s (at
an air temperature of approximate y
5°).
28 29
Technical information
Calibre J880.3
Automatic movement with chronoscope function
Bi-directiona automatic winding mechanism
28,800 semi-vibrations per hour
Power reserve 42 hours (without chronoscope function)
Anti-magnetic as per DIN 8309
Calibre J880.4
Automatic movement with chronoscope function
Bi-directiona automatic winding mechanism
28,800 semi-vibrations per hour
Power reserve 38 hours (without chronoscope function)
Anti-magnetic as per DIN 8309
Impermeability
Designation User Information
Washing, Diving
rain, without
sp ashes Showering Bathing Swimming equipment
no designation no no no no no
3 ATM yes no no no no
5 ATM yes no yes no no
10 ATM yes yes yes yes no
The designation ”3 – 10 ATM” on y app ies to brand new watches.
Externa inf uences can affect water resistance. P ease have your watch
checked regu ar y.
42.712-0595 / 0915
Uhrenfabrik Junghans GmbH & Co. KG
Postfach 100 · D-78701 Schramberg
www.junghans.de · information@junghans.de
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